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Timofei Larkin 97a3eaa82a feat(postgres)!: mint tenant passwords through the credentials API
The chart generated every user's password at render time into
<release>-credentials, which tenants could read again at any time and
which Helm history kept for MaxHistory revisions, so a deployment whose
policy requires a credential shown once could not run PostgreSQL here.

The accounts move under CloudNativePG's managed roles, each pointing at
the account Secret the Cozystack API seeds, so the operator creates the
role with the SCRAM verifier the Secret holds and applies a changed
Secret live, and a password set inside PostgreSQL is reverted. Every
role is rendered as the init-script created it, because the operator
reverts an attribute that differs, revokes a parent role missing from
inRoles and clears a comment the spec leaves unset, while the
init-script still finds the roles to drop by that comment and by
membership in the marker. The init-script stops creating, passwording
and altering accounts, where it would be a second writer, and keeps the
two things the operator has no field for: the marker membership
narrowed to a record, and createrole_self_grant.

The refusal to adopt a role the chart did not mark moves into a
pre-upgrade hook, because the operator adopts a managed role within
seconds of the spec reaching it and the post-upgrade init-job would
find it adopted already. The definition declares the credentials block,
so the API seeds, serves and mints for the kind, and no longer selects
the credentials Secret, which the chart no longer renders or grants.

BREAKING CHANGE: PostgreSQL passwords are no longer readable from
<release>-credentials. A password is issued once, by a mint on the
account's Credential in core.cozystack.io, and replaced by the next
mint; deleting a Postgres application whose release is suspended is
refused. The conversion needs a platform variant with migrations
enabled.

Assisted-by: LLM
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
2026-10-14 12:50:05 +02:00
..

Chainsaw E2E tests

The Cozystack E2E app suite, written for Kyverno Chainsaw — a declarative, Kubernetes-native E2E test framework (CNCF, part of the Kyverno project; successor to KUTTL).

This directory replaces the per-app BATS suite that used to live in hack/e2e-apps/*.bats. The CI e2e job runs every suite under hack/e2e-chainsaw/ through hack/e2e-chainsaw-run.sh after make install-cozystack; cluster bootstrap (hack/e2e-prepare-cluster-container.bats, hack/e2e-install-cozystack.bats) and the OpenAPI checks (hack/e2e-test-openapi.bats) remain BATS.

Layout

hack/e2e-chainsaw/
├── .chainsaw.yaml          # global Configuration (namespace, timeouts, JUnit report)
├── _lib/                   # shell reused by the script-heavy suites
│   ├── run-kubernetes.sh   #   tenant Kubernetes bringup + LB/NFS/ouroboros checks
│   └── remediation-guard.sh
├── <app>/
│   ├── chainsaw-test.yaml  # one or more Test definitions
│   └── <app>.yaml          # the manifests the test applies
└── ...

Suites: postgres, bucket, mariadb, mongodb, redis, valkey, qdrant, clickhouse, kafka, kafka-metadata, rabbitmq, etcd, openbao, harbor, foundationdb, external-dns, kuberture, vminstance, gateway, opensearch, monitoring, kubernetes-latest, kubernetes-previous, securitygroup, seaweedfs, computeplane.

What Chainsaw buys over the BATS suite

  • Readable tests — a list of resources and expected states, not shell control flow. The timeout N sh -ec "until kubectl get ..." + kubectl wait pair that appeared ~100 times collapses into a single assert that polls existence and state together.
  • Distinguishable failure modes — "object never created", "created but never ready", and "wrong status" all surface as a structured diff instead of an opaque shell timeout.
  • Automatic diagnostics — catch blocks dump events, describe, and pod logs on any failure (the BATS suite only did this in harbor.bats, by hand).
  • Automatic cleanup — resources Chainsaw applied are deleted (and waited on) in reverse order; finally covers operator-created leftovers.
  • CI-ready output — a JUnit chainsaw-report.xml is emitted for the test summary.

Test anatomy

Each suite is a directory with a chainsaw-test.yaml (one or more Test docs) plus the manifests it applies. A step has try (operations: apply, assert, error, script, delete, …), optional catch (diagnostics on failure), and optional finally (teardown regardless of outcome).

Declarative suites assert on status.conditions and concrete fields. Inherently imperative suites keep their logic in script steps:

  • openbao — bao operator init/unseal via kubectl exec.
  • kuberture — jq on Service annotations + external-dns split-horizon log assertions.
  • vminstance — a server-side dry-run eviction of the VM's launcher pod, checked against the VMI's LiveMigratable condition.
  • gateway — admission-rejection cases that need kubectl --as impersonation or error-message greps; the tenant apex is read from the namespace namespace.cozystack.io/host label at runtime so they pass on any host.
  • kubernetes-latest/previous — wrap _lib/run-kubernetes.sh (Kamaji bringup, port-forward, LB/NFS/ouroboros). The script cds to the repo root (the test dir is hack/e2e-chainsaw/<suite>, so repo root is ../../..).

Conventions / gotchas (Chainsaw v0.2.15)

  • Condition asserts use the filter-as-list form, not the documented [0] index:
    status:
      (conditions[?type == 'Ready']):
      - status: "True"
    
    The (conditions[?type == 'Ready'])[0]: {status: "True"} idiom fails with "field not found in the input object".
  • A reading of a failure diff: the "actual" side is a projection onto the expected fields — status: {} means the JMESPath expression failed, not that status is empty. Read the error line above the diff first.
  • error with a bare resource ref (name only) asserts the resource does not exist (used for "PVC reclaimed", "no backup schedule", "child has no Gateway HR").
  • script runs in the test directory with $NAMESPACE set to the config namespace (tenant-test).

Running locally

Requires a cluster with Cozystack installed and a tenant-test namespace (the environment hack/e2e-install-cozystack.bats produces). bucket and seaweedfs additionally need mc, nc, and jq on the host; kuberture/openbao/foundationdb/securitygroup/computeplane/kubernetes-latest/kubernetes-previous/vminstance need jq.

# install chainsaw
go install github.com/kyverno/chainsaw@latest   # or: brew install kyverno/chainsaw/chainsaw

# run all suites (config picked up from .chainsaw.yaml)
cd hack/e2e-chainsaw
chainsaw test

# run a single suite
chainsaw test postgres/

kubernetes-latest/kubernetes-previous each bring up a full tenant Kubernetes cluster (~25 min, real worker nodes) and vminstance boots a nested VM — expect a long run for the full set.

CI integration

The e2e job in .github/workflows/pull-requests.yaml runs make -C packages/core/testing test-chainsaw (which execs hack/e2e-chainsaw-run.sh inside the e2e sandbox) and uploads chainsaw-report.xml. The runner calls chainsaw test once per suite directory, fails a suite whose pods outlive its cleanup by more than the default timeouts.cleanup (LEAKED-PODS suite=<dir> in the log; see docs/agents/e2e-testing.md §8 and _lib/leak-allowlist.txt for known, filed leaks), and merges the per-suite reports into that one file. A local chainsaw test as shown above runs the same tests without the leak check. The sandbox image (packages/core/testing/images/e2e-sandbox/Dockerfile) ships the chainsaw binary alongside kubectl/helm/mc/jq/nc, built from source with a patch that keeps an assert polling through transient API errors such as an etcd leader change; a released chainsaw run locally fails the assert on the first such error instead.